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Having a Problem? (continued)
SITUATION PROBABLE CAUSE & SOLUTION
DOOR REVERSES FOR
NO APPARENT REASON
1. Pull red manual release handle. Operate door manually. If it is unbalanced or binding, call a
garage door serviceman to correct the problem.
2. Clear any ice or snow from garage floor area where garage door closes.
3. Review the Force Adjustment Chart on page 21. REPEAT SAFETY REVERSE
TEST after adjustment is complete.
4. If door reverses in FULLY CLOSED position, decrease travel limits (Page 20).
REPEAT SAFETY REVERSE TEST after the adjustment is complete. THE NEED FOR
OCCASIONAL ADJUSTMENT OF THE FORCE AND LIMIT SETTINGS IS NORMAL.
WEATHER CONDITIONS IN PARTICULAR CAN AFFECT DOOR TRAVEL.
5. Check the Protector System (if you have installed this accessory). If the light is blinking.
correct alignment.
OPENER LIGHT(S)
DOESN'T TURN ON
1. Replace the light bulb (75 watts maximum). Use a "garage door opener bulb" if standard bulb
burns out prematurely due to vibration. Vibration may be caused by loose end panel. Retighten
screws.
DOESN'T TURN OFF
1. There may be a defective ground at ceiling or wall receptacle.
UNIT MUST BE GROUNDED.
2. Is the Light Feature ON ? Turn it OFF.
OPENER STRAINS OR
MAXIMUM FORCE IS NEEDED
TO OPERATE DOOR
1. Door may be out of balance or springs are broken. Close door and use manual release rope
and handle to disconnect trolley. Open and close door manually. A properly balanced door will
stay in any point of travel while being supported entirely by its springs. If it does not, call a
garage door serviceman to correct the problem .
OPENER MOTOR HUMS
BRIEFLY, THEN WON'T WORK
1. Garage door springs are broken. SEE ABOVE.
2. The trolley may be jammed into stop bolts. Pull or push on door while motor is humming to
release jammed condition. Re-adjust door limits (page 20) to prevent over-travel.
REPEAT SAFETY REVERSE TEST after adjustment is complete.
3. If the problem occurs on first operation of the opener, door is locked. DISABLE DOOR LOCK.
If chain was removed and reinstalled, motor may be out of phase. Remove chain; cycle motor
to the down position. Observe drive sprocket. When it turns in clockwise direction and stops in
down position, reinstall chain.
REPEAT SAFETY REVERSE TEST after adjustment is complete.
OPENER WON'T OPERATE
DUE TO POWER FAILURE
1. Use manual release rope and handle to disconnect trolley. Door can be opened and closed
manually. When the power is restored, press the door control button and trolley will
automatically reconnect.
2. The Outside Quick Release Lock accessory (for use on garages with no service door)
disconnects the trolley from outside the garage in case of power failure.
CHAIN DROOPS OR SAGS
1. It is normal for chain to droop slightly in the closed door position. Use manual release rope and
handle to disconnect trolley. If chain returns to normal height when the trolley is disengaged
and door reverses on a one-inch obstruction, no adjustments are needed {see page 9).
OPENER NOISE IS DISTURBING
IN LIVING QUARTERS OF HOME
1. If operational noise is a problem because of proximity of the opener to the living quarters,
Vibration Isolator Kit 41A3263 can be installed. This kit was designed to eliminate the
'sounding board effect' and is easy to install
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